In this paper, an organic combination of surface molding and numerical calculation is applied to optimization design for centrifugal pump impellers.

本文将曲面造型与数值计算有机的结合在一起应用到离心泵叶轮的优化设计中。

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Reciprocating pumps convert rotary motion to linear motion. Pump speed in RPM determines the pumps output volume for any given combination of cylinder bore and piston stroke.

循环泵将曲轴旋转运动转化为柱塞的直线运动。泵速转每分钟决定了任何气缸和活塞组合的排泵量。

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Unreasonable selection of pump type and improper combination operation are the main causes of low efficiency and energy consuming of intake pumping station equipment.

取水泵站装置效率低、能耗大的主要原因是水泵选型和组合运行调度不合理。

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With the right combination of capacity, performance and rapid power cycling storage system designs can pump more iron while keeping cool and saving energy.

FORBES: Pumping Iron and Keeping Cool

Thousands of genes stick to each ball, and the combination is loaded into a "gene gun, " which consists of two small stainless steel chambers and a vacuum pump.

FORBES: Millions Served